Improvement in steam generators



' asa coating to thiiron. To hold this coating'v in place, andl prevent it from bein ingin thcfperforated nozzle C, all arranged to operate asset forth.

CHARLES E., CASE, oF KENIA, onto.

Letters Patent No. 63,469, dated April 2, 18.67.

IMPROVEMENT STEAM G ENERATORS @in Stigcttle tnttttt tu ,in tinte tittcrs ttnitimt noting mrt tt tige time.

TO ALL WHOM IT MAY'CONERN: v Y

Be it known that I, CHARLES E. CASE, of Xenia, in the county ofGreen, and State of Ollio, have invented E certa-in new and useful improvcinents'in Steam Generators or Boilers; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being` had to the accompanying drawings, making part of this specification, and to the lettcrs'of reference marked thereon, like letters indicating like partsUV wherever they occur. v

To enable others skilled in the art` to construct andiuse my invention, I will proceed vto describe it.

My invention consists in a novel manner of constructing a steam boiler or generator, to prevent the same from being injured by the fire. Itfurther consists in arranging within vthe generator thus constructed a coiled pipe with a spray nozzle, for heating and delivering the water into the generator, to be instantly converted into steam. l w

The drawing representen vertical section oft-he generator and its furnace, as it is intended for use.

A represents Ilthe boiler or vessel, the body, c, of which is constructed of iron or steeliin the usualv manner,.and preferab'y in the form about as represented. ATo this iron body I then apply a covering composed of iire-brick, clay, arid asbestos mixed together, as represented by b of` the drawing; the asbestos being incorporated with the olaf, while the latter is in a plastic condition, thc same as hair is inixcd into mortar. This material forms acoatii g, as'nearly indestructible by rire as is'possible to obtain, in n. suitable condition to be applied g broken or injured, Icover it with a thin outer rasing of copper, as represented by a. The coating of asbestos and clay will be made thickest on those parts most directly exposed to the action pf the tire, which in this insta-nce is atthe bottom, while at the'sides the tbatingis thinner, and at thetop it is omitted entirely, as the upper portion of the vessel is intended to operai-ras a superhea-ter of the steam; andbecause also the intensity of the heat at this point is I s of the generator the coating may be applied to the entire surface-'of the vessel, this of course dependiiw upon its foi-m and location with reference to the iirc or furnace. The vessel thus constructed is suspended, by a series of arms, d, within afurnace as represente-l. The water is injectedl by mea-ns of a force-pulnp through the pipe F into the coil B, where it is rapidly hea ted and ejected through the Afinely perforated nozzle C, when it is atonce converted into steam, which rises to the upper portion ofthe vessel, where it is superheated and escapes thence through pipe E to the cylinderof the engine. In order to start the generator, the water may be admitted through a separate pipe leading from a reservoir situated abovethe level ofthe vessel'A, said pipe being provided with suitable cocks or valves, to regulate its admission as desired; or if the pump be connected with a reservoir of suicient Aelevation, it maj: be admitted through the same pipe, as the, valves in the pump all open toward the vessel, and

will therefore permit the water to flow from the reservoir through the pump and pipe F into the generator, on opening a cock or valve suitably located between the reservoir and the generator. It will benud'erstood that .in this, as in all-similar generators, the'water is to be ijfiected at intervals in limited quantities, sufficient to generate-enough steam to operate the piston once,r a new supply being furnished at catch stroke of the piston'. Having thus described iny invention, what I clailns'sV l 1. The application to the exterior of steam geuratorso'f a coating composed of asbestos mixed with fireciay, and held in place by a metal covering, as herein shown and described.

2. In combination with the generator, constructed as iierein described, I claim the coiled pipe B, terminat- OHARLES E.. CASE.

Witnesses W. C. Denen?" Giras. HAD-Away. 

